ICALEO 2006 Paper #M1101 (Nanostructuring in Si using a Femtosecond Laser (Invited Paper))
Nanostructuring in Si using a Femtosecond Laser (Invited Paper)
Authors:
Ming Li, Panasonic Boston Lab; Cambridge MA USA
Presented at ICALEO 2006
A femtosecond laser is used as a tool to machine a high-Q photonic bandgap crystal, which consists of a series of ~200-nm holes on a monorail silicon-on-insulator structure. This photonic crystal has exhibited a high transmission peak with Q value of ~700. A Q of 700 suggests that this device is a ~ 2 nm narrow-band filter at telecommunication wavelength. Cross-sectional transmission electron microscopy was used to study the material morphology change after laser irradiation. An amorphous layer of Si was found to be adjacent to the ablated holes. T...$28.00
ICALEO 2006 Paper #M106 (Optimisation of TiN thin film synthesis by a novel combined laser/sol-gel processing technique )
Optimisation of TiN thin film synthesis by a novel combined laser/sol-gel processing technique
Authors:
Tamer Ezz, ; Manchester Great Britain
Philip Crouse, Manchester University; Manchester Great Britain
Zhu Liu, University of manchester; Manchester Great Britain
Lin Li, University of manchester; Manchester Great Britain
Presented at ICALEO 2006
Of the many methods of laser treatment for improving materials surface properties that have been reported, very few have addressed laser-assisted chemical reaction. In this work in situ titanium nitride and silicon nitride ceramic phases were produced by the reaction of titania and silica sol- gel mixtures, wi...$28.00
ICALEO 2006 Paper #M105 (Analysis of Modified Layer Formation into Silicon Wafer by Permeable Nanosecond Laser)
Analysis of Modified Layer Formation into Silicon Wafer by Permeable Nanosecond Laser
Authors:
Etsuji Ohmura, Osaka University; Suita, Osaka Japan
Kenshi Fukumitsu, Hamamatsu Photonics K.K.; Iwata Japan
Naoki Uchiyama, Hamamatsu Photonics K.K.; Iwata Japan
Hideki Morita, Hamamatsu Photonics K.K.; Iwata Japan
Kazuhiro Atsumi, Hamamatsu Photonics K.K.; Iwata Japan
Masayoshi Kumagai, Hamamatsu Photonics K.K.; Iwata Japan
Presented at ICALEO 2006
When a permeable pulse laser which is focused into the inside of a silicon wafer is scanned in the horizontal direction, a belt-shaped high dislocation density layer including partially polyc...$28.00
ICALEO 2006 Paper #M104 (Laser-assisted Combustion-flame Synthesis of Diamond Films)
Laser-assisted Combustion-flame Synthesis of Diamond Films
Authors:
Y.X. Han, University of Nebraska-Lincoln; Lincoln NE USA
H. Ling, University of Nebraska; Lincoln NE USA
Yongfeng Lu, University of Nebraska-Lincoln; Lincoln NE USA
Presented at ICALEO 2006
Diamond and diamond-like carbon (DLC) films were synthesized on tungsten carbide substrates in open atmosphere using a C2H2/O2 combustion flame with a gas ratio (C2H2/O2) of 0.9-1.0. Before and during the synthesizing process, a KrF excimer laser with a pulse width of 23 ns and a wavelength of 248 nm was used to illuminate the reaction area. The surface morphology and structure of the deposited films were studied by...$28.00
ICALEO 2006 Paper #M103 (Microstructure and Mechanical Properties of Laser Net Shape Manufactured Inconel 718 and Ti-6Al-4V Components)
Microstructure and Mechanical Properties of Laser Net Shape Manufactured Inconel 718 and Ti-6Al-4V Components
Authors:
Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
Jinjiang He, Tsinghua University; Beijing Peoples Republic of China
Wenjin Liu, Tsinghua University; Beijing Peoples Republic of China
Presented at ICALEO 2006
Refractory intermetallic compound Nb3Al is expected as a candidate for structural materials operated at much higher temperatures compared to conventional Ni superalloys. However, Nb3Al is difficult to fabricate by conventional methods. This paper presents the research on combination of the synthesizing of A15 Nb-Ti-Al and bcc/B...$28.00
ICALEO 2006 Paper #M102 (Fabrication, Characterization and Simulation of Noval 3-D Photonic Bandgap Structures Using Laser Chemical Vapour Deposition)
Fabrication, Characterization and Simulation of Noval 3-D Photonic Bandgap Structures Using Laser Chemical Vapour Deposition
Authors:
H. Wang, University of Nebraska; Lincoln NE USA
Yongfeng Lu, University of Nebraska-Lincoln; Lincoln NE USA
Z.Y. Yang, University of Nebraska; Lincoln NE USA
Presented at ICALEO 2006
3-D photonic bandgap (PBG) structures were fabricated using laser chemical vapor deposition (LCVD) in combination of self-assembly of silica particles on silicon substrates. The multilayer self-assembly of silica particles were formed on silicon substrates using isothermal heating evaporation approach. A CW Nd:YAG laser (1064 nm wavelength) was used as the e...$28.00
ICALEO 2006 Paper #M101 (A Microfluidic Bioarray System using Laser-machined Surface Microstructures (Invited Paper))
A Microfluidic Bioarray System using Laser-machined Surface Microstructures (Invited Paper)
Authors:
Tadatake Sato, National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba, Ibaraki Japan
Aiko Narazaki, National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba, Ibaraki Japan
Ryozo Kurosaki, National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba, Ibaraki Japan
Thomas Gumpenberger, National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba, Ibaraki Japan
Hiroyuki Niino, National Institute of Advanced Industrial Science and Technology (AIST); Tsukuba, Ibaraki Japan<...$28.00
ICALEO 2006 Paper #M1006 (Femtosecond Laser Machining of Dielectric Materials for Biomedical Applications)
Femtosecond Laser Machining of Dielectric Materials for Biomedical Applications
Authors:
Burr Zimmerman, The Ohio State University; Columbus OH USA
Hae Woon Choi, The Ohio State University; Columbus OH USA
Jeremy Steach, The Ohio State University; Columbus OH USA
Dave F Farson, The Ohio State University; Columbus OH USA
L James Lee, The Ohio State University; Columbus OH USA
Susan V Olesik, The Ohio State University; Columbus OH USA
Presented at ICALEO 2006
Femtosecond laser ablation of borosilicate glass and fused silica for fabrication of microfluidic channels for biomedical device applications is studied. Channel widths ranging...$28.00
ICALEO 2006 Paper #M1005 (Machinability of Laser Heated Silicon Nitride Ceramics during a Turning Process)
Machinability of Laser Heated Silicon Nitride Ceramics during a Turning Process
Authors:
Marian Jankowiak, Poznan University of Technology; Poznan Poland
Konrad Bartkowiak, Poznan University of Technology; Poznan Poland
Presented at ICALEO 2006
The Si3N4 ceramics, due to low density, very good wear, corrosion and heat resistance, is important material with many engineering and medical applications. However the high hardness (2125HV) and brittleness ceramics made serious difficulties of machining. Laser Assisted Machining (LAM) is currently developed and under research method of hard Si3N4 ceramics machining. It is a hybrid process of the machining, where the material is heated via ...$28.00
ICALEO 2006 Paper #M1003 (Improved Picosecond Laser Radiation for Micro-Machining)
Improved Picosecond Laser Radiation for Micro-Machining
Authors:
Thomas Herrmann, Lumera Laser GmbH; Kaiserslautern Germany
Achim Nebel, Lumera Laser GmbH; Kaiserslautern Germany
Bernhard Henrich, Lumera Laser GmbH; Kaiserslautern Germany
Hatim Haloui, Lumera Laser GmbH; Kaiserslautern Germany
Ralf Knappe, Lumera Laser *GmbH; Kaiserslautern Germany
Presented at ICALEO 2006
Picosecond laser pulses are used to micro-machine virtually any material with highest precision and minimal thermal impact. Best quality has been demonstrated at low fluence removal with pulse energies of a few µJ. Economical throughput is achieved by very high pulse repeti...$28.00
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